An Image Segment Method Based on Color Invariance of Physical Reflection Model

Abstract

This paper proposes a new background segmentation method based on Phong reflection model for video surveillance system.The main goal of this method is to reduce the affections of the non-uniform illumination and specular reflection.The steps of this method include: First,the colour invariance of diffuse reflection was deduced and the diffuse component of the model was estimated;second,the specular factors and specular exponent of the specular component was calculated by following differential rules;third,based on the established model,the background segment is accomplished.The experimental results and the evaluation show that this method can not only be robust to the non-uniform lighting and the specular reflection of background surface,but also be applicable for real-time video surveillance system.